Synthesis and nonlinear optical properties of chromophores for photorefractive polymer materials
作者:Enrique Font-Sanchis、Francisco J. Céspedes-Guirao、Ángela Sastre-Santos、Belén Villacampa、Jesús Orduna、Raquel Alicante、Fernando Fernández-Lázaro
DOI:10.1016/j.tet.2009.03.099
日期:2009.6
The synthesis and nonlinear optical (NLO) properties of a series of nitrostilbene-, dinitrostilbene-, and dicyanomethylenedihydrofuran-based chromophores potentially useful in photorefractive multifunctional polymers are reported. Electronic absorption spectra have been measured in different solvents. Electric field induced second harmonic (EFISH) generation results show that the 2-dicyanomethylen-3-cyano-5
据报道,一系列基于硝基苯乙烯,二硝基苯乙烯和二氰基亚甲基二氢呋喃的生色团的合成和非线性光学(NLO)性能可能在光折变多功能聚合物中有用。电子吸收光谱已在不同溶剂中测量。电场诱导的二次谐波(EFISH)生成结果表明,2-二氰亚甲基-3-氰基-5,5-二甲基-2,5-二氢呋喃部分可导致最佳的NLO性能。与单硝基类似物相比,基于二硝基苯基的生色团显示出降低的非线性响应。理论上还确定了选定的硝基-二硝基对的非线性光学性质。